CURT Custom 4-Way Flat Wiring - Mazda CX-9 – 56338

The CURT 56338 custom wiring connector adds a 4-way flat trailer-lighting output to compatible Mazda CX-9 vehicles. Unlike a harness that connects behind both taillights, this part plugs into the vehicle's existing OEM wiring socket and uses a powered converter to operate trailer lighting.

Vehicle Compatibility

• 2016–2023 Mazda CX-9: CURT lists these model years for exact part number 56338.
• Locate and confirm the matching factory wiring socket before ordering. Do not assume this connector fits a CX-9 without the required socket or an unlisted model year.

What the Connector Does

• Manufacturer part number: 56338.
• Trailer output: standard 4-way flat for turn signals, running lights and brake lights.
• Electrical connection: plugs into the compatible OEM vehicle socket without cutting or splicing the factory wires.
• Battery-powered converter: vehicle battery connection is required; follow CURT's supplied instructions for fuse placement and protected wiring.
• Maximum circuit ratings: 6 amps for taillights and 3 amps for turn/brake lights, as specified by CURT.
• Includes a protective 4-flat dust cover and is backed by CURT's limited one-year warranty.

Secure the harness away from sharp edges and moving components, then test all trailer lights before towing. A 7-way trailer socket or electric brake controller is not included.